Java读取CSV和XML文件方法

游戏开发中,读取策划给的配置表是必不可少的,我在之前公司,策划给的是xml表来读取,现在公司策划给的是CSV表来读取,其实大同小异,也并不是什么难点,我就简单分享下Java如何读取XML文件和CSV文件。以下工具类可随意拿去使用。

Java读XML文件

如果是Maven项目,则依赖以下包(如果不是,则自己在项目添加配置相应jar包)

        
        <dependency>
            <groupId>dom4jgroupId>
            <artifactId>dom4jartifactId>
            <version>1.6.1version>
        dependency>
        
        
        <dependency>
            <groupId>com.thoughtworks.xstreamgroupId>
            <artifactId>xstreamartifactId>
            <version>1.4.3version>
        dependency>

读取XML文件应该是比较常见的,用dom4j就可以很简单的读出来,首先准备一个XML文件,来映射出所有的XML资源文件的名字,资源文件如下:

dataConfig.xml

<config>
    <file name="Test.xml" />
config>

示例资源XML文件如下

Test.xml

<dataset>
    <Test attr1="" attr2="" attr3="" />
dataset>

Java项目中建一个类,变量名与XML中属性名相同,Java代码通过这个XML文件来找出所有的资源XML文件,然后将XML文件中的属性值全部读取到类中,再把类放进Map,加载到内存中,这样,每次需要读取配置表,就可以直接从内存中读取,快速且方便
以下是XmlDataLoader.java,作用是从数据表中读取属性值到内存

package com.hjc._36.util.xml;

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.hjc._36.core.GameInit;
import com.hjc._36.util.csv.TempletService;

/**
 * 1 所有的template类都必须在一个包中 2 通过读取xml 遍历所有的Element,通过Element.name和 package 得到具体的
 * className; 3 通过Element的 attr 获取方法,并且根据parameterType 强制转换类型
 * 
 * @author Administrator
 * 
 */
public class XmlDataLoader {
    private String packageName;
    private String config; // 每一行就是一个配置文件名字
    private static Logger logger = LoggerFactory.getLogger(XmlDataLoader.class);
    public static int ActivityMaxValue;

    public XmlDataLoader(String packageName, String config) {
        this.packageName = packageName;
        this.config = config;
    }

    /**
     * 调用load方法加载所有的配置文件
     */
    public void load() {
        SAXReader reader = new SAXReader();
        try {
            Document doc = reader.read(new InputStreamReader(this.getClass()
                    .getResourceAsStream(this.config)));
            List nodes = doc.selectNodes("/config/file");
            Map> dataMap = new HashMap>();
            List files = new LinkedList();
            for (Object n : nodes) {
                Element t = (Element) n;
                String f = t.attributeValue("name");
                List dataList = this.loadFile(f, true);
                for (Object o : dataList) {
                    TempletService.getInstance().registerObject(o, dataMap);
                }
                files.add(f);
            }
            logger.info("读取配置完毕,准备afterLoad");
            TempletService.templetMap = dataMap;
            TempletService.getInstance().afterLoad();
            logger.info("afterLoad 完毕");
        } catch (DocumentException e) {
            e.printStackTrace();
        } finally {

        }
    }

    private List loadFile(String file, boolean exitWhenFail) {
        try {
            file = GameInit.confFileBasePath + file;
            logger.info("load file: {}", file);
            InputStream resourceAsStream = this.getClass().getResourceAsStream(
                    file);
            if (resourceAsStream == null) {
                logger.error("文件不存在:" + file);
                if (exitWhenFail) {
                    System.exit(0);
                }
                return null;
            }
            return loadFromStream(resourceAsStream);
        } catch (Exception e) {
            logger.error("载入文件出错:" + file);
            e.printStackTrace();
            System.exit(0);
        } finally {
        }
        return Collections.EMPTY_LIST;
    }

    public List loadFromStream(InputStream resourceAsStream)
            throws UnsupportedEncodingException, DocumentException,
            InstantiationException, IllegalAccessException {
        SAXReader reader = new SAXReader();
        Document doc = reader.read(new InputStreamReader(resourceAsStream,
                "utf-8"));
        Element dataSet = (Element) doc.selectNodes("/dataset").get(0);
        List nodes = dataSet.elements();
        // get clazz
        String className = this.packageName
                + ((Element) nodes.get(0)).getName();
        try {
            Class classObject = Class.forName(className);
            if (classObject == null) {
                logger.error("未找到类" + className);
                return null;
            }
            // Get all the declared fields
            Field[] fields = classObject.getDeclaredFields();
            LinkedList fieldList = new LinkedList();
            int length = fields.length;
            for (int i = -1; ++i < length;) {
                boolean isStaticField = Modifier.isStatic(fields[i]
                        .getModifiers());
                if (isStaticField)
                    continue;
                boolean isTransientField = Modifier.isTransient(fields[i]
                        .getModifiers());
                if (isTransientField)
                    continue;
                fieldList.add(fields[i]);
            }
            // Get all the declared fields of supper class
            Class tmp = classObject;
            while ((tmp = tmp.getSuperclass()) != Object.class) {
                System.out.print("the extends class is" + tmp.getName());
                fields = tmp.getDeclaredFields();
                length = fields.length;
                if (length == 0)
                    continue;
                for (int i = -1; ++i < length;) {
                    boolean isStaticField = Modifier.isStatic(fields[i]
                            .getModifiers());
                    if (isStaticField)
                        continue;
                    boolean isTransientField = Modifier.isTransient(fields[i]
                            .getModifiers());
                    if (isTransientField)
                        continue;
                    fieldList.add(fields[i]);
                }
            }
            // The truly need to return object
            List instances = new ArrayList(nodes.size());
            Object instance = null;
            String fieldName = null;
            String fieldValue = null;
            for (Object node : nodes) {
                if (node != null) {
                    instance = classObject.newInstance();
                    boolean ok = false;
                    Element row = (Element) node;
                    for (Field field : fieldList) {
                        fieldName = field.getName();
                        fieldValue = row.attributeValue(fieldName);
                        if (fieldValue == null)
                            continue;
                        try {
                            this.setField(instance, field, fieldValue);
                            ok = true;
                        } catch (Exception e) {
                            logger.error("类名称是" + className + "的属性" + fieldName
                                    + "没有被成功赋予静态数据");
                            continue;
                        }
                    }
                    if (ok)
                        instances.add(instance);
                }
            }
            return instances;
        } catch (ClassNotFoundException e1) {
            e1.printStackTrace();
            logger.error("未找到类" + className);
            return null;
        }
    }

    public void reload() {
    }

    /**
     * 
     * @Title: setUnknowField
     * @Description:
     * @param ob
     * @param f
     * @param v
     * @throws IllegalArgumentException
     * @throws IllegalAccessException
     */
    private void setField(Object obj, Field f, String v)
            throws IllegalArgumentException, IllegalAccessException {
        f.setAccessible(true);
        if (f.getType() == int.class) {
            f.setInt(obj, Integer.parseInt(v));
        } else if (f.getType() == short.class) {
            f.setShort(obj, Short.parseShort(v));
        } else if (f.getType() == byte.class) {
            f.setByte(obj, Byte.parseByte(v));
        } else if (f.getType() == long.class) {
            f.setLong(obj, Long.parseLong(v));
        } else if (f.getType() == double.class) {
            f.setDouble(obj, Double.parseDouble(v));
        } else if (f.getType() == float.class) {
            f.setFloat(obj, Float.parseFloat(v));
        } else if (f.getType() == Timestamp.class) {
            f.set(obj, Timestamp.valueOf(v));
        } else {
            f.set(obj, f.getType().cast(v));
        }
    }

    /**
     * Test Code
     * 
     * @param args
     */
    public static void main(String[] args) {
        XmlDataLoader dl = new XmlDataLoader("com.hjc._36.template.",
                "/dataConfig.xml");
        dl.load();
    }

} 
  

如上的测试方法中看出,调用方式很简单,只需加载到映射XML文件,即可读取所有的配置XML文件,调用load()方法后,配置表就全部加载到了内存,我们通过以下类——TempletService.java来对这些配置数据进行管理:

package com.hjc._36.util.csv;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 添加一个数据表需要做以下几步 
 * 1.在包com.hjc._36.template下创建对应的模板类,类名与数据文件一致 
 * 2.在src/main/resources/xml/中添加模板数据文件
 * 3.在src/main/resources/dataConfig.xml加入刚才的模板数据文件
 * 
 * @author 何金成
 * 
 */
public class TempletService {
    public static Logger log = LoggerFactory.getLogger(TempletService.class);
    public static TempletService templetService = new TempletService();
    /**
     * key:实体名 value:该实体下的所有模板数据
     */
    public static Map> templetMap = new HashMap>();

    public TempletService() {

    }

    public static TempletService getInstance() {
        return templetService;
    }

    /**
     * 获取该实体类下所有模板数据
     * 
     * @param beanName
     * @return
     */
    @SuppressWarnings("unchecked")
    public static List listAll(String beanName) {
        return templetMap.get(beanName);
    }

    /**
     * @Title: registerObject 
     * @Description: 注册对象到对应类的List中
     * @param o
     * @param dataMap
     * @return void
     * @throws
     */
    public void registerObject(Object o, Map> dataMap) {
        add(o.getClass().getSimpleName(), o, dataMap);
    }



    @SuppressWarnings("unchecked")
    private void add(String key, Object data, Map> dataMap) {
        List list = dataMap.get(key);
        if (list == null) {
            list = new ArrayList();
            dataMap.put(key, list);
        }
        list.add(data);
    }

    public void afterLoad() {
        // 加载后处理
        // List tests = TempletService.listAll(Test.class.getSimpleName());
        // for (Object object : tests) {
        // Test test = (Test)object;
        // System.out.print(test.getEquipLv());
        // System.out.print(","+test.getLv1());
        // System.out.print(","+test.getLv2());
        // System.out.print(","+test.getLv3());
        // System.out.print(","+test.getLv4());
        // System.out.print(","+test.getLv5());
        // System.out.print(","+test.getLv6());
        // System.out.print(","+test.getLv7());
        // System.out.print(","+test.getLv8());
        // System.out.print(","+test.getLv9());
        // System.out.println(","+test.getLv10());
        // }
    }

    public void loadCanShu() {
        // 加载全局参数xml配置
    }
}

在load()中,变用到了上述类的registerObject方法来添加数据,在使用时,只需要调用listAll方法即可,在上面代码中的测试代码已经写明了用法。

Java读取CSV文件

Java读CSV文件与读XML文件如出一辙,大致思路同上

dataConfig.xml

<config>
    <file name="Test.csv" />
    <file name="JunjichuUpgrade.csv" />
    <file name="Card.csv" />
    <file name="Equip.csv" />
    <file name="Prop.csv" />
config>

Test.csv如下:

Test.csv
等级,1星,2星,3星,4星,5星,6星,7星,8星,9星,10星,11星,12星,13星,14星,15星,16星,17星,18星,19星,20星,21星,22星,23星,24星,25星
EquipLv,Lv1,Lv2,Lv3,Lv4,Lv5,Lv6,Lv7,Lv8,Lv9,Lv10,Lv11,Lv12,Lv13,Lv14,Lv15,Lv16,Lv17,Lv18,Lv19,Lv20,Lv21,Lv22,Lv23,Lv24,Lv25
10,2,4,8,12,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
20,6,12,24,36,48,60,72,84,96,108,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
30,12,24,48,72,96,120,144,168,192,216,240,264,288,312,336,0,0,0,0,0,0,0,0,0,0
40,20,40,80,120,160,200,240,280,320,360,400,440,480,520,560,0,0,0,0,0,0,0,0,0,0
50,30,60,120,180,240,300,360,420,480,540,600,660,720,780,840,900,960,1020,1080,1140,0,0,0,0,0
60,42,84,168,252,336,420,504,588,672,756,840,924,1008,1092,1176,1260,1344,1428,1512,1596,0,0,0,0,0
70,56,112,224,336,448,560,672,784,896,1008,1120,1232,1344,1456,1568,1680,1792,1904,2016,2128,0,0,0,0,0
80,72,144,288,432,576,720,864,1008,1152,1296,1440,1584,1728,1872,2016,2160,2304,2448,2592,2736,2880,3024,3168,3312,3456
90,90,180,360,540,720,900,1080,1260,1440,1620,1800,1980,2160,2340,2520,2700,2880,3060,3240,3420,3600,3780,3960,4140,4320
100,110,220,440,660,880,1100,1320,1540,1760,1980,2200,2420,2640,2860,3080,3300,3520,3740,3960,4180,4400,4620,4840,5060,5280

如上CSV表大家也能看出来,CSV文件中的数据是以一定规律呈现的,解析CSV便是根据CSV文件的这些特性来进行解析的,解析工具类CsvParser.java代码如下:

package com.hjc._36.util.csv;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

//JAVA 操作 excel 中的 .csv文件格式
public class CsvParser {
    private BufferedReader bufferedreader = null;
    private List list = new ArrayList();

    public CsvParser() {
    }

    public CsvParser(InputStream inStream) throws IOException {
        InputStreamReader isr = new InputStreamReader(inStream, "UTF-8");
        bufferedreader = new BufferedReader(isr);
        String stemp;
        while ((stemp = bufferedreader.readLine()) != null) {
            list.add(stemp);
        }
    }

    public List getList() throws IOException {
        return list;
    }

    public List getListWithNoHeader() throws IOException {
        return list.subList(2, list.size());
    }

    // 得到csv文件的行数
    public int getRowNum() {
        return list.size();
    }

    // 得到csv文件的列数
    public int getColNum() {
        if (!list.toString().equals("[]")) {
            if (list.get(0).toString().contains(",")) { // csv文件中,每列之间的是用','来分隔的
                return list.get(0).toString().split(",").length;
            } else if (list.get(0).toString().trim().length() != 0) {
                return 1;
            } else {
                return 0;
            }
        } else {
            return 0;
        }
    }

    // 取得指定行的值
    public String getRow(int index) {
        if (this.list.size() != 0)
            return (String) list.get(index);
        else
            return null;
    }

    // 取得指定列的值
    public String getCol(int index) {
        if (this.getColNum() == 0) {
            return null;
        }
        StringBuffer scol = new StringBuffer();
        String temp = null;
        int colnum = this.getColNum();
        if (colnum > 1) {
            for (Iterator it = list.iterator(); it.hasNext();) {
                temp = it.next().toString();
                scol = scol.append(temp.split(",")[index] + ",");
            }
        } else {
            for (Iterator it = list.iterator(); it.hasNext();) {
                temp = it.next().toString();
                scol = scol.append(temp + ",");
            }
        }
        String str = new String(scol.toString());
        str = str.substring(0, str.length() - 1);
        return str;
    }

    // 取得指定行,指定列的值
    public String getString(int row, int col) {
        String temp = null;
        int colnum = this.getColNum();
        if (colnum > 1) {
            temp = list.get(row).toString().split(",")[col];
        } else if (colnum == 1) {
            temp = list.get(row).toString();
        } else {
            temp = null;
        }
        return temp;
    }

    public void CsvClose() throws IOException {
        this.bufferedreader.close();
    }

    public List readCvs(String filename) throws IOException {
        CsvParser cu = new CsvParser(new FileInputStream(new File(filename)));
        List list = cu.getList();

        return list;
    }

    public void createCsv(String biao, List list, String path)
            throws IOException {
        List tt = list;
        String data = "";
        SimpleDateFormat dataFormat = new SimpleDateFormat("yyyyMMdd");
        Date today = new Date();
        String dateToday = dataFormat.format(today);
        File file = new File(path + "resource/expert/" + dateToday
                + "importerrorinfo.csv");
        if (!file.exists())
            file.createNewFile();
        else
            file.delete();
        String str[];
        StringBuilder sb = new StringBuilder("");
        sb.append(biao);
        FileOutputStream writerStream = new FileOutputStream(file, true);
        BufferedWriter output = new BufferedWriter(new OutputStreamWriter(
                writerStream, "UTF-8"));
        for (Iterator itt = tt.iterator(); itt.hasNext();) {
            String fileStr = itt.next().toString();
            // str = fileStr.split(",");
            // for (int i = 0; i <= str.length - 1; i++) { // 拆分成数组 用于插入数据库中
            // System.out.print("str[" + i + "]=" + str[i] + " ");
            // }
            // System.out.println("");
            sb.append(fileStr + "\r\n");
        }
        output.write(sb.toString());
        output.flush();
        output.close();
    }

    public static void main(String[] args) throws IOException {
        CsvParser test = new CsvParser();
        List aaa = test.readCvs("D:/abc.csv");
        for (int i = 0; i < aaa.size(); i++) {
            System.out.println(i + "---" + aaa.get(i));
            String a = (String) aaa.get(i).toString().split(",")[0];
        }
        System.out.println(aaa.size());
        //String biao = "用户名,姓名,排序,专家类型,业务专长,错误信息\n";
        //test.createCsv(biao, aaa, "D:/");
        // test.run("D:/abc.csv");
        // HttpServletResponse response = null;
        // test.createCsv(response);
//      CSVReader reader = new CSVReader(new FileReader("D:/abc.csv"));
//      ColumnPositionMappingStrategy strat = new ColumnPositionMappingStrategy();
//      strat.setType(Test.class);
//      String[] columns = new String[] {"EquipLv","Lv1","Lv2","Lv3","Lv4","Lv5","Lv6","Lv7","Lv8","Lv9","Lv10","Lv11","Lv12","Lv13","Lv14","Lv15"}; // the fields to bind do in your JavaBean
//      strat.setColumnMapping(columns);
//      CsvToBean csv = new CsvToBean();
//      List list = csv.parse(strat, reader);
//      System.out.println(list.size());
//      for (Test test : list) {
//          System.out.println(test.getEquipLv());
//          System.out.print(test.getLv1());
//          System.out.print(test.getLv2());
//          System.out.print(test.getLv3());
//          System.out.print(test.getLv4());
//          System.out.print(test.getLv5());
//          System.out.print(test.getLv6());
//          System.out.print(test.getLv7());
//          System.out.print(test.getLv8());
//          System.out.print(test.getLv9());
//          System.out.print(test.getLv10());
//          System.out.print(test.getLv11());
//          System.out.print(test.getLv12());
//          System.out.print(test.getLv13());
//          System.out.print(test.getLv14());
//          System.out.print(test.getLv15());
//      }

    }
}

CSV解析与XML解析的区别仅限于此,XML使用SaxReader来进行解析,而CSV自定义解析方式(当然网上也有很多别得第三方解析工具),接下来的步骤与XML解析一模一样,CsvDataLoader.java稍有不同的地方就是解析CSV文件的部分,代码如下:

package com.hjc._36.util.csv;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.hjc._36.core.GameInit;

public class CsvDataLoader {
    public static Logger logger = LoggerFactory.getLogger(CsvDataLoader.class);
    private String packageName;
    private String config; // 每一行就是一个配置文件名字
    public static int ActivityMaxValue;

    public CsvDataLoader(String packageName, String config) {
        this.packageName = packageName;
        this.config = config;
    }

    /**
     * 调用load方法加载所有的配置文件
     */
    public void load() {
        SAXReader reader = new SAXReader();
        try {
            Document doc = reader.read(new InputStreamReader(this.getClass()
                    .getResourceAsStream(this.config)));
            List nodes = doc.selectNodes("/config/file");
            Map> dataMap = new HashMap>();
            List files = new LinkedList();
            for (Object n : nodes) {
                Element t = (Element) n;
                String f = t.attributeValue("name");
                List dataList = this.loadFile(f, true);
                for (Object o : dataList) {
                    TempletService.getInstance().registerObject(o, dataMap);
                }
                files.add(f);
            }
            logger.info("读取配置完毕,准备afterLoad");
            TempletService.templetMap = dataMap;
            TempletService.getInstance().afterLoad();
            logger.info("afterLoad 完毕");
        } catch (DocumentException e) {
            e.printStackTrace();
        } finally {

        }
    }

    private List loadFile(String file, boolean exitWhenFail) {// 读文件
        try {
            String clzName = file.replaceAll(".csv", "");
            file = GameInit.confFileBasePath + file;
            logger.info("load file: {}", file);
            InputStream resourceAsStream = this.getClass().getResourceAsStream(
                    file);
            if (resourceAsStream == null) {
                logger.error("文件不存在:" + file);
                if (exitWhenFail) {
                    System.exit(0);
                }
                return null;
            }
            return loadFromStream(resourceAsStream, clzName);
        } catch (Exception e) {
            logger.error("载入文件出错:" + file);
            e.printStackTrace();
            System.exit(0);
        } finally {
        }
        return Collections.EMPTY_LIST;
    }

    public List loadFromStream(InputStream resourceAsStream, String clzName)
            throws DocumentException, InstantiationException,
            IllegalAccessException, IOException {// 读csv文件
        CsvParser csvParser = new CsvParser(resourceAsStream);
        List nodes = csvParser.getListWithNoHeader();
        // get clazz
        String className = this.packageName + clzName;
        try {
            Class classObject = Class.forName(className);
            if (classObject == null) {
                logger.error("未找到类" + className);
                return null;
            }
            // Get all the declared fields
            Field[] fields = classObject.getDeclaredFields();
            LinkedList fieldList = new LinkedList();
            int length = fields.length;
            for (int i = -1; ++i < length;) {
                boolean isStaticField = Modifier.isStatic(fields[i]
                        .getModifiers());
                if (isStaticField)
                    continue;
                boolean isTransientField = Modifier.isTransient(fields[i]
                        .getModifiers());
                if (isTransientField)
                    continue;
                fieldList.add(fields[i]);
            }
            // Get all the declared fields of supper class
            Class tmp = classObject;
            while ((tmp = tmp.getSuperclass()) != Object.class) {
                System.out.print("the extends class is" + tmp.getName());
                fields = tmp.getDeclaredFields();
                length = fields.length;
                if (length == 0)
                    continue;
                for (int i = -1; ++i < length;) {
                    boolean isStaticField = Modifier.isStatic(fields[i]
                            .getModifiers());
                    if (isStaticField)
                        continue;
                    boolean isTransientField = Modifier.isTransient(fields[i]
                            .getModifiers());
                    if (isTransientField)
                        continue;
                    fieldList.add(fields[i]);
                }
            }
            // The truly need to return object
            List instances = new ArrayList(nodes.size());
            Object instance = null;
            String fieldName = null;
            String fieldValue = null;
            for (String node : nodes) {
                if (node != null) {
                    instance = classObject.newInstance();
                    boolean ok = false;
                    // Element row = (Element) node;
                    String[] values = node.split(",");// csv文件以英文逗号分割值
                    for (int i = 0; i < fieldList.size(); i++) {
                        Field field = fieldList.get(i);
                        fieldName = field.getName();
                        fieldValue = values[i];
                        if (fieldValue == null)
                            continue;
                        try {
                            this.setField(instance, field, fieldValue);
                            ok = true;
                        } catch (Exception e) {
                            logger.error("类名称是" + className + "的属性" + fieldName
                                    + "没有被成功赋予静态数据");
                            continue;
                        }
                    }
                    if (ok) {
                        instances.add(instance);
                    }
                }
            }
            return instances;
        } catch (ClassNotFoundException e1) {
            e1.printStackTrace();
            logger.error("未找到类" + className);
            return null;
        }
    }

    /**
     * 
     * @Title: setUnknowField
     * @Description:
     * @param ob
     * @param f
     * @param v
     * @throws IllegalArgumentException
     * @throws IllegalAccessException
     */
    private void setField(Object obj, Field f, String v)
            throws IllegalArgumentException, IllegalAccessException {
        f.setAccessible(true);
        if (f.getType() == int.class) {
            f.setInt(obj, Integer.parseInt(v));
        } else if (f.getType() == short.class) {
            f.setShort(obj, Short.parseShort(v));
        } else if (f.getType() == byte.class) {
            f.setByte(obj, Byte.parseByte(v));
        } else if (f.getType() == long.class) {
            f.setLong(obj, Long.parseLong(v));
        } else if (f.getType() == double.class) {
            f.setDouble(obj, Double.parseDouble(v));
        } else if (f.getType() == float.class) {
            f.setFloat(obj, Float.parseFloat(v));
        } else if (f.getType() == Timestamp.class) {
            f.set(obj, Timestamp.valueOf(v));
        } else {
            f.set(obj, f.getType().cast(v));
        }
    }

    /**
     * Test Code
     * 
     * @param args
     */
    public static void main(String[] args) {
        CsvDataLoader dl = new CsvDataLoader("com.hjc._36.template.",
                "/dataConfig.xml");
        dl.load();
    }
} 
  

最后load()加载过后,依然使用TempletService来进行管理,使用方法也相同,具体代码参照上面。

以上便是我对Java读取CSV和XML资源文件的总结,有需要的同学可以直接拿去用。

你可能感兴趣的:(Java,java,xml,csv,游戏开发,maven)